<title>AC97 Codec</title>

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<h2><img  src="images/mixer_ac97_s.gif" width="50" height="37" > AC97 Codec</h2>
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<p>The kX Mixer <a href="glossary.htm#AC97">AC97</a> page allows control over the AC97 Inputs and Outputs (note that all <a href="glossary.htm#kX Compatible">kX-compatible</a> cards have an AC97 codec, with the exception of the E-mu APS and Audigy2 Platinum eX).</p>
<p><h3>Outputs:</h3></p>
<p><b><img  src="images/tadout.gif" width="45" height="30" > TAD Out</b><br> Telephone Answering Device output level (mono). Typically accessed via an on-board 4-pin input and output connector labeled &quot;TAD&quot;.</p>
<p><b><img  src="images/pcspeaker.gif" width="45" height="30" > PC Speaker</b><br> PC Speaker output level (mono). Typically accessed via an on-board 2-pin connector labeled &quot;PC_SPK&quot;.</p>
<p><h3>Inputs:</h3></p>
<p><b><img  src="images/tadin.gif" width="35" height="35" > TAD In</b><br> Telephone Answering Device input level (mono). Typically accessed via an on-board 4-pin input and output connector labeled &quot;TAD&quot;.</p>
<p><b><img  src="images/micin.gif" width="27" height="25" > Mic</b><br> Microphone input level (mono). Typically accessed through a 1/8&quot; stereo jack at the rear of the card. Note that in general it is preferable to use the Line Input with an external preamp (pre-amplifier) if possible, since the Mic input tends to be noisy due to low-cost/performance built-in amplifier components.</p>
<p><b><img  src="images/linein.gif" width="45" height="27" > Line</b><br> Line-In input level (stereo). Typically accessed through a 1/8&quot; stereo jack at the rear of the card.</p>
<p><b><img  src="images/cdin.gif" width="35" height="35" > CD</b><br> CD Analog-In level (stereo). Typically accessed via an on-board 4-pin connector labeled &quot;CD_IN&quot; (not to be confused with the digital CD_SPDIF input).</p>
<p><b><img  src="images/videoin.gif" width="35" height="27" > Video</b><br> Video-In level (stereo). Note that on most <a href="glossary.htm#kX Compatible">kX-compatible</a> cards, this input is not implemented by manufacturer (no hardware connection point available).</p>
<p><b><img  src="images/auxin.gif" width="45" height="27" > Aux</b><br> Auxiliary-In level (stereo). Typically accessed via an on-board 4-pin connector labeled &quot;AUX_IN&quot;</p>
<p><h3>Other functions:</h3></p>
<p><b><img  src="images/ac97_src.gif" width="125" height="64" > AC97 Recording Source</b><br> AC97 recording source is selected via the AC97 drop-down menu Choices are Mic, CD, Video, Aux, Line-In, Stereo Mix, Mono Mix or Phone. Note that only one analog AC97 source can be recorded at a time, unless StereoMix (or MonoMix) is selected, in which case multiple AC97 sources will be recorded together with PCM (system audio) output. Refer to the <a href="signaflow.htm">Signal Flow Diagram</a> for further details.</p>
<p><img  src="images/ac97reset_o.gif" width="50" height="33" > The AC97 Codec may be reset to default settings by clicking on the AC97 Reset button.</p>
<p><img  src="images/micboost_o.gif" width="50" height="30" > Microphone 20dB Boost option is enabled by clicking on the x2 Boost button. </p>
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